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The uniqueID is useful when there are two or more devices of the same type (identical manufacturer ID, part ID) on the same link. When there is a single device of a given type on a link, its uniqueID is irrelevant. It's not uncommon on actual platforms to see variations of the uniqueID, or differences between devID registers and ACPI _ADR fields. This patch suggests a filter on startup to identify 'single' devices and tag them accordingly. The uniqueID is then not used for the probe, and the device name omits the uniqueID as well. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022234808.17432-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.